public AuthenticatedPublicKeyCryptoContext(AuthenticatedPublicKeyCrypto64 parent, byte[] sharedSecret)
 {
     _parent       = parent;
     _sharedSecret = sharedSecret;
 }
 public AuthenticatedPublicKeyCryptoContext(AuthenticatedPublicKeyCrypto64 parent, byte[] sharedSecret)
 {
     _parent = parent;
     _sharedSecret = sharedSecret;
 }